JP2015112697A - Rail rust remover - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the stable polishing finish, regardless of a technology of an operator, by maintaining pressure contact in a predetermined load to a rail upper surface of a polishing member over a longer time than usual, in a rail rust remover used for polishing and removing red rust of the railroad rail upper surface.SOLUTION: The rail rust remover comprises a baseplate 4 movable along a rail R, a disc-like polishing member 15 rotatably journaled in the circumferential direction by the baseplate and allowing its peripheral surface to abut on the rail upper surface, driving means 14 provided on the baseplate and rotating the polishing member in the predetermined direction, height adjustment means 16 capable of adjusting a height to the rail of the baseplate and energization means 24 for imparting energization force downward to the baseplate with height adjusted by the height adjustment means.

Description

  The present invention relates to a rail rust remover, and more specifically, to a rail rust remover used for polishing and removing red rust on an upper surface (head surface) of a railroad rail.

If red rust adheres to the upper surface (head surface) of the railroad rail, the red rust becomes an insulator, which hinders the flow of signal current and hinders vehicle operation. Therefore, as a means for removing the red rust, a rust removing machine that rolls, for example, a disk-shaped polishing (grinding) member along the rail upper surface is used.
For example, as shown in FIG. 3, a rust removing machine disclosed in Patent Document 1 includes a machine base 53 supported by wheels 51 and 52 before and after rolling on a rail R, and a rear wheel 52 in the machine base 53. And a handle frame 54 erected above.
A dust collector 60 that collects the ground rust is provided on the front side of the machine base 53, and a polishing device 70 that polishes the upper surface of the rail R, and the polishing device 70 and the dust collector are provided on the rear side. An engine 56 for driving the motor 60 is provided.

The engine 56 is supported on an upper stage of a swing base 57 that is a two-step upper and lower stepped frame body, and the front end of the swing base 57 is rotatably supported on the axle of the front wheel 51, and the rear end thereof. The side is connected to a rod-shaped adjustment rod 58 supported by the handle frame 54.
The polishing apparatus 70 includes a disk-shaped polishing member 55. The polishing member 55 is rotatably suspended below the engine 56 (below the swinging table 57), and its lower end surface is a rail. The state is in contact with the upper surface.
The dust collecting device 60 is driven by the engine 56 via the first belt transmission mechanism 63, and the polishing device 70 is also driven by the engine 56 via the second belt transmission mechanism 64.

  Further, an operation handle 59 is provided at the upper end of the adjustment rod 58. When the operation handle 59 is turned, the nut member 60 is vertically moved along the screw flange portion 58a at the lower end portion of the adjustment rod 58, and the swing base. 57 moves up and down about the front wheel 51 as an axis. When the oscillating base 57 moves up and down, the polishing member 55 is appropriately pressed against the upper surface of the rail, and pressed by the handle frame 54 to move the machine base 53 along the rail R and operate the engine 56. The polishing member 55 removes rust adhered to the upper surface of the rail, and the polishing powder is collected by the dust collector 60.

JP 2010-240813 A

However, in the configuration of the rust removing machine disclosed in Patent Document 1, when the polishing operation proceeds and the peripheral surface of the polishing member 55 is worn to some extent, the diameter of the polishing member 55 is reduced, and the rail upper surface of the polishing member 25 is reduced. The strength (load) of pressure contact with respect to decreases.
Therefore, it is necessary to frequently operate the adjustment rod 58 to reduce the height of the polishing member 55 and adjust the strength of the pressure contact, and there is a problem that the polishing work becomes complicated.
Further, the timing (time interval) for adjusting the strength of the pressure contact and the degree of adjustment differ depending on the worker, and when the worker presses the handle frame 54 downward, the load on the upper surface of the rail R of the polishing member 55 is also increased. As a result, there has been a problem that the polishing finish on the rail upper surface tends to vary depending on the operator.
Furthermore, since the upper surface of the rail R has irregularities due to rust, the polishing member 55 is likely to be splashed with respect to the upper surface of the rail R, resulting in an increase in the number of places where polishing is insufficient.

  The present invention has been made paying attention to the above points, and in a rail rust remover used for polishing and removing red rust on the railroad rail upper surface, a predetermined load on the rail upper surface of the polishing member is longer than before. It is an object of the present invention to provide a rail rust remover that can maintain the pressure contact in the process and can obtain a stable polished finish regardless of the skill of the operator.

In order to solve the above-described problems, a rail rust remover according to the present invention is a rail rust remover for polishing and removing rust on a railroad rail upper surface, and a base plate movable along the rail, A disk-shaped polishing member that is rotatably supported in the circumferential direction by a base plate and whose peripheral surface is in contact with the rail upper surface, and is provided on the base plate, and rotates the polishing member in a predetermined direction. A driving means; a height adjusting means capable of adjusting a height of the base plate relative to the rail; and an urging means for applying an urging force downward to the base plate adjusted in height by the height adjusting means. It is characterized by comprising.
The base plate is provided above the base plate and includes a frame surrounding the driving means. The base plate is rotatably supported by the frame on the front end side, and the rear end side is rotatable up and down with respect to the frame. The rear end side of the base plate supports the polishing member and can be adjusted in height by the height adjusting means and urged downward by the urging means. desirable.
With this configuration, even when the abrasion of the polishing member proceeds, the peripheral surface of the polishing member can be pressed against the rail upper surface while maintaining a predetermined load by the urging force of the urging means. .
Therefore, it is not necessary to perform the height adjustment work on the rear end side of the base plate by the height adjustment means for a long time after the polishing work is started, and the pressure contact with a predetermined load is applied by the urging force of the urging means. Therefore, the polishing finish on the rail upper surface can be made stable with little variation regardless of the skill of the operator.

The biasing means includes an elastic member that can be expanded and contracted in the vertical direction, and the elastic member is provided in a state compressed in the vertical direction, and an upper end side thereof is fixed to the frame side, and the elastic member It is desirable that the lower end side of the base plate is fixed to the rear end side of the base plate.
In addition, the said elastic member can be comprised by a coil spring, for example.
Thus, by using an elastic member as the biasing means, the base plate can be pressed downward by the biasing force in the extending direction.

  According to the present invention, in the rail rust removing machine used for polishing and removing red rust on the railroad rail upper surface, it is possible to maintain the pressure contact with the predetermined load on the rail upper surface of the polishing member for a longer time than before. A stable polishing finish can be obtained regardless of the skilled person.

FIG. 1 is a side view schematically showing a configuration of an embodiment of a rail rust remover according to the present invention. FIG. 2 is a plan view showing a cross section taken along line AA in FIG. FIG. 3 is a side view of a conventional rail rust remover.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a side view schematically showing a configuration of an embodiment of a rail rust remover according to the present invention. FIG. 2 is a plan view showing a cross section taken along line AA in FIG.
A rail rust removing machine 1 shown in FIG. 1 is an apparatus for polishing (grinding) and removing red rust adhering to the upper surface of a rail R, and one of a pair of railway rails R laid in parallel. The upper surface of the rail R is polished while being moved along the rail R (that is, one rail is polished on each side).

  More specifically, the configuration of the rail rust removing machine 1 includes a metal frame 2 that is a frame surrounding the whole, and a handle portion 3 extending rearward is provided at the upper end of the rear end. A plate-like swing base 4 (base plate) is attached to the bottom of the frame 2 so that its rear end side can swing up and down. That is, a pivot 31 protruding left and right is provided on the lower surface on the front end side of the swing base 4, and a bearing portion 30 is provided on the lower surface on the front end side of the frame 2 to support the pivot 31 so as to be rotatable around its axis. Yes. For this reason, the swing base 4 can be pivoted (swinged) in the vertical direction with the pivot 31 on the front end side as an axis.

Further, on the rear end side of the frame 2, the front end side of a spring bracket 21 that extends in the body width direction as shown in FIG. 2 and has an inverted U-shaped cross section as shown in FIG. 1 is fixed. The rear end side of the spring bracket 21 is fixed to a height adjusting rod 16 (height adjusting means) provided on the rear side.
The height adjusting rod 16 includes a first link member 17 having an operation handle 27 and a lock bar 28 for fixing the handle attached to the upper end, and a first link member 17 rotatably connected to the lower end of the first link member 17. 2 link members 18. Further, a third link member 20 is rotatably provided on the rear side of the first link member 17, and an arm member for rotating the second link member 18 at the tip of the third link member 20. 19 is provided to connect the second link member 18. A shaft portion 25 is provided at the lower end of the second link member 18, and a rear wheel 26 is rotatably provided on the shaft portion 25.
In the height adjustment rod 16 configured as described above, when the operation handle 27 is rotated in either the left or right direction, the third link member 20 is rotated upward or downward, and the arm member 19 is interposed via the arm member 19. The lower end side of the second link member 18, that is, the rear wheel 26 is configured to move upward or downward with respect to the frame 2.

Further, in the spring bracket 21, screw rods 22 having screw grooves on the circumferential surface are vertically inserted on both the left and right sides of the machine body so as to be rotatable about the axis, and the tip thereof is Although not shown, it is in contact with the upper surface of the swing base 4. A fastening member 23 that is screwed onto the screw rod 22 is attached on the spring bracket 21.
Further, at the position of the screw rod 22, as shown in FIG. 1, the screw rod 22 is surrounded between the ceiling surface of the spring receiving bracket 21 having an inverted U-shaped cross section and the upper surface of the rear end of the swing base 4. Thus, the coiled spring 24 (elastic member) is mounted in a compressed state (the upper end side of the spring 24 is fixed to the frame side and the lower end side is fixed to the rear end side of the swing base 4). Therefore, the spring 24 always urges the rear end side of the swing base 4 downward. Further, according to this configuration, by adjusting the tightening degree of the tightening member 23, the screw rod 22 moves up and down with respect to the spring receiving member 21, and as a result, the urging force of the spring 24 can be adjusted. Yes.
The spring receiving bracket 21 and the spring 24, in addition to the screw rod 22 and the fastening member 23 constitute a downward biasing means for the swing base 4.

A bearing portion 5 is provided on the lower surface of the front end side of the swing base 4, and a front wheel 7 is rotatably held by a shaft portion 6 provided on the bearing portion 5.
That is, in the rail rust removing machine 1, the front wheel 7 and the rear wheel 26 can move along the rail R by rolling on the rail R.

A pulley 10 is rotatably provided on the lower surface of the rear portion of the swing base 4 by a shaft portion 9, and a disc-shaped polishing member is provided on the shaft portion 9 between a front wheel 7 and a rear wheel 26. 15 is attached.
As shown in FIG. 1, the lower end of the peripheral surface of the polishing member 15 is in contact with the upper surface of the rail R, and the strength (load) of the pressure contact with the upper surface of the rail R is adjusted by the height adjusting rod 16 and the spring 24. It depends on the urging force of.
The width of the peripheral surface of the polishing member 15 is at least equal to or greater than the width of the upper surface of the rail R.

Further, an engine 14 (drive means) is mounted on the swing base 4 as shown in FIG. 1, and a drive belt 12 is stretched between the engine-side pulley 11 provided on the engine 14 and the pulley 10. It is built. The drive belt 12 is covered with a cover member 13.
When the engine 14 is operated, the engine-side pulley 11 rotates, and the pulley 8 rotates through the drive belt 12 to rotate the shaft portion 9. Thereby, the disk-shaped grinding | polishing member 15 rotates in the predetermined direction, specifically, the direction where the rail rust removal machine 1 advances.

In the rail rust remover 1 configured as described above, when the worker performs the rust removal work on the upper surface of the rail R, first, the height is set with the front wheel 7 and the rear wheel 26 of the rail rust remover 1 placed on the rail R. The operation handle 27 of the adjustment rod 16 is turned to adjust the height of the rear end side of the swing base 4. As a result, the height of the polishing member 15 attached to the rear end side of the swing base 4, that is, the pressure contact strength (load) of the polishing member 15 in contact with the upper surface of the rail R is adjusted.
Further, the downward biasing force of the spring 24 against the rear end of the swing base 4 is adjusted by adjusting the tightening degree of the tightening member 23.

Next, the engine 14 is operated and the polishing member 15 is started to rotate. At this time, the polishing member 15 rotates while maintaining a predetermined rotation number.
While standing, the operator grasps the handle portion 3 from the rear side of the rail rust remover 1, presses forward, rolls the front wheel 7 and the rear wheel 26, and moves forward while balancing the rail rust remover 1. To do.
After the polishing operation is started, the polishing member 15 is pressed against the upper surface of the rail R with a predetermined load while rotating, so that the rust attached to the upper surface of the rail R is removed by polishing.
At this time, since the polishing member 15 is pressed against the upper surface of the rail R by the spring 24, the behavior such as the polishing member 15 jumping is suppressed.

As the polishing operation by the polishing member 15 proceeds to some extent, the wear on the peripheral surface of the polishing member 15 also progresses. Here, although the diameter of the polishing member 15 is reduced due to wear, the rear end of the swing base 4 is always pressed downward by the urging force of the spring 24, so that the peripheral surface of the polishing member 15 is loaded against the upper surface of the rail R. Is maintained in pressure contact with the upper surface of the rail R.
That is, while the urging force of a predetermined level or more by the spring 24 is applied to the rear end of the swing base 4, even if the polishing member 15 is worn, the peripheral surface of the polishing member 15 is pressed against the upper surface of the rail R with a predetermined load. Will be.

As described above, according to the embodiment of the present invention, even when the abrasion of the polishing member 15 proceeds, the circumferential surface of the polishing member 15 is caused to have a predetermined load with respect to the upper surface of the rail R by the biasing force of the spring 24. Can be pressed while maintaining
Therefore, it is not necessary to perform the height adjustment work on the rear end side of the swing base 4 with the height adjustment rod 16 for a long time after the polishing work is started, and the biasing force of the spring 24 causes a predetermined load. Since the polishing operation can be performed while maintaining the pressure contact, the polishing finish on the rail upper surface can be made stable with little variation regardless of the skill of the operator.
Further, since the polishing member 15 is pressed against the upper surface of the rail R by the spring 24, it is possible to suppress the behavior such as the polishing member 15 jumping and to significantly reduce the places where polishing is insufficient. it can.

In the above embodiment, the elastic member is used as the urging means and the urging force in the extending direction is used. However, in the present invention, the urging means is not limited thereto. For example, the swing base 4 may be pressed downward by an air cylinder without using an elastic member.
Even when an elastic member is used, it is not limited to a coil spring as in the present embodiment, and an elastic member such as a leaf spring may be used.

1 Rail rust removal machine 2 Frame 3 Handle part 4 Swing base (base plate)
7 Front wheel 14 Engine (drive means)
15 Polishing member 16 Height adjustment rod (height adjustment means)
21 Spring bracket (biasing means)
22 Screw rod (biasing means)
23 Tightening member (biasing means)
24 Spring (elastic member)
26 Rear wheel R rail

Claims (4)

A rail rust remover for polishing and removing rust on the upper surface of railroad rails,
A base plate movable along the rail;
A disk-shaped polishing member that is pivotally supported by the base plate so as to be rotatable in the circumferential direction, and whose peripheral surface is in contact with the rail upper surface;
A driving means provided on the base plate for rotating the polishing member in a predetermined direction;
A height adjusting means capable of adjusting a height of the base plate relative to the rail;
A rail rust removing machine comprising: an urging unit that applies an urging force downward to the base plate whose height is adjusted by the height adjusting unit. A frame provided above the base plate and surrounding the driving means;
The base plate is rotatably supported at the front end side by the frame, and the rear end side is provided to be rotatable up and down with respect to the frame.
The rear end side of the base plate supports the polishing member and can be adjusted in height by the height adjusting means, and is urged downward by the urging means. The rail rust removing machine described in Item 1. The biasing means has an elastic member that can be expanded and contracted in the vertical direction,
The elastic member is provided in a state compressed in the vertical direction, and an upper end side thereof is fixed to the frame side, and a lower end side of the elastic member is fixed to a rear end side of the base plate. A rail rust remover according to claim 2.   The rail rust remover according to claim 3, wherein the elastic member is a coil spring.

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